效率提高的原因主要有兩個: 第一個是規模效應, 第二個是采用了更好的孝母.
Source: U.S. Energy Information Administration, Monthly Energy Review
Note: Ethanol volumes do not include gasoline that must be added to denature ethanol, rendering it undrinkable and therefore taxable as fuel rather than as beverage alcohol.
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效率提高的原因主要有兩個: 第一個是規模效應, 第二個是采用了更好的孝母.
Source: U.S. Energy Information Administration, Monthly Energy Review
Note: Ethanol volumes do not include gasoline that must be added to denature ethanol, rendering it undrinkable and therefore taxable as fuel rather than as beverage alcohol.